Skip to main content

RegistrationMagic EUVDEUVD-2026-68793

| CVE-2026-82221 HIGH
Cross-site Scripting (XSS) (CWE-79)
2026-08-31 Patchstack GHSA-gfh3-73rq-r627
7.1
CVSS 3.1 · Vendor: Patchstack
View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Craft malicious XSS payload URL
  2. Delivery
    Deliver link to WordPress admin via phishing
  3. Exploit
    Admin clicks link while authenticated
  4. Execution
    Injected script executes in admin's browser
  5. Impact
    Steal session cookie or perform admin actions

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

The RegistrationMagic plugin must be installed and activated on a WordPress site, with at least one registration form rendered on a publicly accessible page (the plugin's primary purpose, meaning this is the default operational state). The attacker requires no account or credentials on the target site. Exploitation requires that a victim - most impactfully a WordPress administrator - follow a crafted link or visit an attacker-controlled page that triggers the cross-site request. The UI:R metric limits exploitation to scenarios where social engineering or phishing is employed to deliver the malicious URL; fully passive, drive-by exploitation without victim interaction is not possible. Sites that have deactivated the plugin or removed all RegistrationMagic shortcodes from public pages are not exploitable.

Impact

The CVSS 7.1 High score reflects a practical risk profile: network-accessible (AV:N), low complexity (AC:L), no authentication required from the attacker (PR:N), but user interaction is required (UI:R), meaning the victim must click a crafted link or visit a malicious page. The scope change (S:C) elevates real-world impact because a successful exploitation can compromise sessions of authenticated WordPress administrators who visit the crafted URL - a common phishing vector. EPSS data is not available in the provided input, limiting probabilistic exploitation forecasting. KEV status is not confirmed, and no POC is publicly documented at this time, which moderates urgency compared to a KEV-listed flaw. However, unauthenticated XSS in public-facing WordPress registration forms is a well-understood, easy-to-exploit class that historically sees rapid community exploitation once disclosed via Patchstack's public database.

Exploit ScenarioDerived

An attacker crafts a URL targeting a RegistrationMagic-powered registration page with a malicious JavaScript payload embedded in a vulnerable parameter. The attacker delivers this link to a WordPress administrator via phishing email or forum post; when the administrator clicks the link while authenticated to the WordPress dashboard, the script executes in their browser, potentially exfiltrating session cookies or initiating unauthorized administrative actions. No POC code is publicly known, but the unauthenticated, low-complexity nature of the flaw makes independent rediscovery straightforward for motivated threat actors familiar with WordPress plugin vulnerability patterns.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.1% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Aug 31, 2026

Unauthenticated XSS in RegistrationMagic WordPress plugin versions 6.0.9.8 and below exposes sites to script injection attacks requiring only that a victim visit a crafted URL. The CVSS scope-change metric (S:C) confirms the injected payload executes in the victim's browser security context rather than the server's, enabling session hijacking, credential theft, or administrative action on behalf of the victim. No public exploit code has been identified at time of analysis, and the vulnerability is not listed in the CISA KEV catalog.

RemediationAI

Update RegistrationMagic to a version above 6.0.9.8 as soon as a patched release is available from the Metagauss team via the WordPress plugin repository. Patch availability per an exact fix version is not confirmed in the provided data - the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/custom-registration-form-builder-with-submission-manager/vulnerability/wordpress-registrationmagic-plugin-6-0-9-8-cross-site-scripting-xss-vulnerability) should be monitored for a patched release version. If an immediate update is not possible, consider temporarily deactivating the plugin on public-facing registration pages and substituting an alternative form solution. Deploying a WordPress-aware web application firewall (WAF) with XSS rules - such as Patchstack's virtual patching or Wordfence - can block exploitation attempts against unpatched instances without requiring plugin deactivation, though this is a compensating control, not a fix.

Affected VersionsENISA

RegistrationMagic n/a ≤6.0.9.8

Affected Packages

euvd registrationmagic no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

RegistrationMagic (CPE: cpe:2.3:a:metagauss:registrationmagic:*:*:*:*:*:*:*:*) is a WordPress plugin by Metagauss that provides a custom registration form builder with a submission manager. The root cause is CWE-79 (Improper Neutralization of Input During Web Page Generation), meaning attacker-controlled input is reflected or stored into a web page without adequate encoding or sanitization before rendering in a browser. WordPress plugin XSS vulnerabilities frequently originate in unescaped query parameters or form fields processed by shortcode handlers. The S:C (scope changed) CVSS metric confirms the injected script crosses security boundaries - executing in the victim's browser context rather than confined to the plugin's own origin.

Know when Registrationmagic gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

Vendor (Patchstack) PRIMARY 7.1 HIGH
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
vuln.today AI 7.1 HIGH

Unauthenticated network-accessible XSS in a public registration form; UI:R because victim must follow crafted link; S:C for cross-browser-context script execution.

3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
4.0 AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:L/SI:L/SA:N

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low

DescriptionCVE.org

Unauthenticated Cross Site Scripting (XSS) in RegistrationMagic <= 6.0.9.8 versions.

Executive ViewAI

Why It Matters

RegistrationMagic WordPress plugin versions 6.0.9.8 and below contain an unauthenticated cross-site scripting vulnerability exposing sites to session hijacking and credential theft. Although no public exploit code has been identified at time of analysis, organizations using this plugin face direct risk to user account security and site integrity. With no patch currently available, immediate mitigation measures are critical.

Business Impact: High
Compensating Controls

Implement Web Application Firewall rules to block XSS payloads; deploy Content Security Policy headers to prevent inline script execution; temporarily disable the plugin if not critical to business operations; restrict WordPress administrator account access; monitor registration endpoint access logs for exploitation attempts; conduct user account audit for compromise indicators.

Threat Intelligence Overview

EPSS Score
0.1%
Top 96% exploitable
Prevalence
Medium
popular WordPress registration form builder plugin, tens of thousands of installs
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
High
Technical Impact
Partial

Priority Score

36
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +36
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

CVE-2026-77826 HIGH POC
8.8 Sep 05

RegistrationMagic WordPress plugin before version 6.0.9.9 omits audience validation on Facebook OAuth access tokens duri

CVE-2020-9458 HIGH POC
8.8 Mar 06

In the RegistrationMagic plugin through 4.6.0.3 for WordPress, the export function allows remote authenticated users (wi

CVE-2020-9457 HIGH POC
8.8 Mar 06

The RegistrationMagic plugin through 4.6.0.3 for WordPress allows remote authenticated users (with minimal privileges) t

CVE-2020-9456 HIGH POC
8.8 Mar 06

In the RegistrationMagic plugin through 4.6.0.3 for WordPress, the user controller allows remote authenticated users (wi

CVE-2020-9454 HIGH POC
8.8 Mar 06

A CSRF vulnerability in the RegistrationMagic plugin through 4.6.0.3 for WordPress allows remote attackers to forge requ

CVE-2021-4073 HIGH POC
8.1 Dec 14

The RegistrationMagic WordPress plugin made it possible for unauthenticated users to log in as any site user, including

CVE-2020-8435 HIGH POC
8.1 Mar 12

An issue was discovered in the RegistrationMagic plugin 4.6.0.0 for WordPress. Rated high severity (CVSS 8.1), this vuln

CVE-2026-77792 HIGH POC
7.5 Sep 02

Stored XSS in the RegistrationMagic WordPress plugin prior to version 6.0.9.9 allows unauthenticated attackers to inject

CVE-2022-0420 HIGH POC
7.2 Mar 07

The RegistrationMagic WordPress plugin before 5.0.2.2 does not sanitise and escape the rm_form_id parameter before using

CVE-2020-8436 MEDIUM POC
6.1 Mar 12

XSS was discovered in the RegistrationMagic plugin 4.6.0.0 for WordPress via the rm_form_id, rm_tr, or form_name paramet

CVE-2023-2499 CRITICAL
9.8 May 16

The RegistrationMagic plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 5.2.

CVE-2026-49764 CRITICAL
9.8 Jun 15

Authentication bypass in the RegistrationMagic WordPress plugin (versions up to and including 6.0.8.6) allows unauthenti

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy